title: Antistreptococcal treatment of guttate psoriasis: a controlled study.
abstract: BACKGROUND
  The role of streptococcal infection in the initiation of guttate psoriasis is well-recognized. But the treatment results with oral erythromycin and phenoxymethylpenicillin are conflicting.
  
  
  OBJECTIVE
  Our purpose was to evaluate the effectiveness of these antibiotics in the treatment of streptococcus associated guttate psoriasis comparing with a control group.
  
  
  METHODS
  A total of 43 male patients with serologic evidence of a recent streptococcal infection were studied. Their mean age was 21 years (ranged between 19 and 23 years). These 43 patients were randomly allocated into three groups (no treatment group n = 15, erythromycin group n = 14, phenoxymethylpenicillin group n = 14). Both the treatment groups were treated for 14 d. All the groups were followed up for additional 4 weeks.
  
  
  RESULTS
  There were no statistically significant improvement in any group and among the groups.
  
  
  CONCLUSIONS
  There was no statistically significant improvement in streptococcus associated guttate psoriasis with or without a course of oral penicillin or erythromycin.
authors.affiliation: GATA Teaching Hospital, Department of Dermatology, 81327, Istanbul, Turkey. gatadermdogan@yahoo.com
authors.forename: Bilal
authors.initials: B
authors.lastname: Dogan
authors.forename: Ozlem
authors.initials: O
authors.lastname: Karabudak
authors.forename: Yavuz
authors.initials: Y
authors.lastname: Harmanyeri
mesh_terms: D000284:Administration, Oral; D004305:Dose-Response Relationship, Drug; D004334:Drug Administration Schedule; D004917:Erythromycin / Q000008:administration & dosage*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D010404:Penicillin V / Q000008:administration & dosage*; D011336:Probability; D011565:Psoriasis / Q000175:diagnosis / Q000188:drug therapy* / Q000382:microbiology; D012016:Reference Values; D018570:Risk Assessment; D012720:Severity of Illness Index; D013290:Streptococcal Infections / Q000175:diagnosis / Q000188:drug therapy*; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D004917:Erythromycin; D010404:Penicillin V